Комплекс видов Myrmecia pilosula complex был очерчен Ogata and Taylor (1991) как секция в составе видовой группе M. pilosula Fr. Smith 1858. Этот комплекс включает 6 видов, в том числе 4 здесь описываются как новые для науки. In addition, M. pilosula comprises two newly recognized geographical races. These sometimes common ants are known to
Australians variously as “Jack-jumpers, “Jackie-Jumpers, “Jumping Jacks, “Jumper Ants", “Black Jumpers" or
“Hopper Ants. Myrmecia imaii is apparently endemic to southwest Western Australia (WA) and the other species
are collectively distributed in a zone extending from extreme SE Queensland (QLD), south along the Great
Dividing Range and its flanks in eastern New South Wales (NSW), the Australian Capital Territory (ACT), Victoria
(VIC) and Tasmania (TAS), ranging from sea level to the high slopes of Mt Kosciuszko (2, 228m) and the
Tasmanian mountains; thence from SE Victoria westwards to SE South Australia (SA) and Kangaroo Island. The
nearest records of an eastern species to the distributional range of M. imaii are those for M. pilosula in SA east of
Spencer Gulf, an overland distance of over 2, 000km.